mirror of
https://github.com/cake-tech/cake_wallet.git
synced 2024-12-24 12:39:37 +00:00
435 lines
14 KiB
Dart
435 lines
14 KiB
Dart
import 'package:cake_wallet/entities/priority_for_wallet_type.dart';
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import 'package:cake_wallet/entities/transaction_description.dart';
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import 'package:cake_wallet/ethereum/ethereum.dart';
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import 'package:cake_wallet/nano/nano.dart';
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import 'package:cake_wallet/core/wallet_change_listener_view_model.dart';
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import 'package:cake_wallet/entities/contact_record.dart';
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import 'package:cake_wallet/entities/wallet_contact.dart';
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import 'package:cake_wallet/polygon/polygon.dart';
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import 'package:cake_wallet/reactions/wallet_connect.dart';
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import 'package:cake_wallet/store/app_store.dart';
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import 'package:cake_wallet/view_model/contact_list/contact_list_view_model.dart';
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import 'package:cake_wallet/view_model/dashboard/balance_view_model.dart';
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import 'package:cw_core/transaction_priority.dart';
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import 'package:cake_wallet/view_model/send/output.dart';
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import 'package:cake_wallet/view_model/send/send_template_view_model.dart';
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import 'package:hive/hive.dart';
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import 'package:mobx/mobx.dart';
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import 'package:cake_wallet/entities/template.dart';
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import 'package:cake_wallet/core/address_validator.dart';
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import 'package:cake_wallet/core/amount_validator.dart';
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import 'package:cw_core/pending_transaction.dart';
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import 'package:cake_wallet/core/validator.dart';
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import 'package:cake_wallet/core/execution_state.dart';
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import 'package:cake_wallet/monero/monero.dart';
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import 'package:cw_core/sync_status.dart';
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import 'package:cw_core/crypto_currency.dart';
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import 'package:cake_wallet/entities/fiat_currency.dart';
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import 'package:cake_wallet/entities/calculate_fiat_amount.dart';
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import 'package:cw_core/wallet_type.dart';
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import 'package:cake_wallet/store/dashboard/fiat_conversion_store.dart';
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import 'package:cake_wallet/store/settings_store.dart';
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import 'package:cake_wallet/view_model/send/send_view_model_state.dart';
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import 'package:cake_wallet/entities/parsed_address.dart';
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import 'package:cake_wallet/bitcoin/bitcoin.dart';
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import 'package:cake_wallet/haven/haven.dart';
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import 'package:cake_wallet/generated/i18n.dart';
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part 'send_view_model.g.dart';
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class SendViewModel = SendViewModelBase with _$SendViewModel;
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abstract class SendViewModelBase extends WalletChangeListenerViewModel with Store {
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@override
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void onWalletChange(wallet) {
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currencies = wallet.balance.keys.toList();
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selectedCryptoCurrency = wallet.currency;
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hasMultipleTokens = isEVMCompatibleChain(wallet.type);
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}
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SendViewModelBase(
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AppStore appStore,
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this.sendTemplateViewModel,
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this._fiatConversationStore,
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this.balanceViewModel,
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this.contactListViewModel,
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this.transactionDescriptionBox,
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) : state = InitialExecutionState(),
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currencies = appStore.wallet!.balance.keys.toList(),
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selectedCryptoCurrency = appStore.wallet!.currency,
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hasMultipleTokens = isEVMCompatibleChain(appStore.wallet!.type),
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outputs = ObservableList<Output>(),
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_settingsStore = appStore.settingsStore,
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fiatFromSettings = appStore.settingsStore.fiatCurrency,
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super(appStore: appStore) {
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final priority = _settingsStore.priority[wallet.type];
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final priorities = priorityForWalletType(wallet.type);
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if (!priorityForWalletType(wallet.type).contains(priority) && priorities.isNotEmpty) {
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_settingsStore.priority[wallet.type] = priorities.first;
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}
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outputs
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.add(Output(wallet, _settingsStore, _fiatConversationStore, () => selectedCryptoCurrency));
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}
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@observable
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ExecutionState state;
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ObservableList<Output> outputs;
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@action
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void addOutput() {
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outputs
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.add(Output(wallet, _settingsStore, _fiatConversationStore, () => selectedCryptoCurrency));
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}
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@action
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void removeOutput(Output output) {
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if (isBatchSending) {
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outputs.remove(output);
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}
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}
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@action
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void clearOutputs() {
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outputs.clear();
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addOutput();
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}
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@computed
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bool get isBatchSending => outputs.length > 1;
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@computed
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String get pendingTransactionFiatAmount {
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if (pendingTransaction == null) {
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return '0.00';
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}
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try {
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final fiat = calculateFiatAmount(
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price: _fiatConversationStore.prices[selectedCryptoCurrency]!,
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cryptoAmount: pendingTransaction!.amountFormatted);
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return fiat;
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} catch (_) {
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return '0.00';
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}
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}
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@computed
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String get pendingTransactionFeeFiatAmount {
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try {
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if (pendingTransaction != null) {
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final currency =
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isEVMCompatibleChain(walletType) ? wallet.currency : selectedCryptoCurrency;
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final fiat = calculateFiatAmount(
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price: _fiatConversationStore.prices[currency]!,
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cryptoAmount: pendingTransaction!.feeFormatted);
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return fiat;
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} else {
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return '0.00';
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}
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} catch (_) {
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return '0.00';
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}
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}
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FiatCurrency get fiat => _settingsStore.fiatCurrency;
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TransactionPriority get transactionPriority {
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final priority = _settingsStore.priority[wallet.type];
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if (priority == null) {
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throw Exception('Unexpected type ${wallet.type}');
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}
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return priority;
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}
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CryptoCurrency get currency => wallet.currency;
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Validator<String> get amountValidator =>
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AmountValidator(currency: walletTypeToCryptoCurrency(wallet.type));
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Validator<String> get allAmountValidator => AllAmountValidator();
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Validator<String> get addressValidator => AddressValidator(type: selectedCryptoCurrency);
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Validator<String> get textValidator => TextValidator();
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final FiatCurrency fiatFromSettings;
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@observable
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PendingTransaction? pendingTransaction;
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@computed
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String get balance => wallet.balance[selectedCryptoCurrency]!.formattedAvailableBalance;
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@computed
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bool get isFiatDisabled => balanceViewModel.isFiatDisabled;
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@computed
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String get pendingTransactionFiatAmountFormatted =>
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isFiatDisabled ? '' : pendingTransactionFiatAmount + ' ' + fiat.title;
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@computed
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String get pendingTransactionFeeFiatAmountFormatted =>
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isFiatDisabled ? '' : pendingTransactionFeeFiatAmount + ' ' + fiat.title;
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@computed
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bool get isReadyForSend => wallet.syncStatus is SyncedSyncStatus;
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@computed
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List<Template> get templates => sendTemplateViewModel.templates
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.where((template) => _isEqualCurrency(template.cryptoCurrency))
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.toList();
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@computed
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bool get hasCoinControl =>
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wallet.type == WalletType.bitcoin ||
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wallet.type == WalletType.litecoin ||
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wallet.type == WalletType.monero ||
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wallet.type == WalletType.bitcoinCash;
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@computed
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bool get isElectrumWallet =>
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wallet.type == WalletType.bitcoin ||
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wallet.type == WalletType.litecoin ||
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wallet.type == WalletType.bitcoinCash;
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@computed
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bool get hasFees => wallet.type != WalletType.nano && wallet.type != WalletType.banano;
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@observable
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CryptoCurrency selectedCryptoCurrency;
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List<CryptoCurrency> currencies;
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bool get hasYat => outputs
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.any((out) => out.isParsedAddress && out.parsedAddress.parseFrom == ParseFrom.yatRecord);
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WalletType get walletType => wallet.type;
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String? get walletCurrencyName => wallet.currency.fullName?.toLowerCase() ?? wallet.currency.name;
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bool get hasCurrecyChanger => walletType == WalletType.haven;
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@computed
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FiatCurrency get fiatCurrency => _settingsStore.fiatCurrency;
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final SettingsStore _settingsStore;
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final SendTemplateViewModel sendTemplateViewModel;
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final BalanceViewModel balanceViewModel;
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final ContactListViewModel contactListViewModel;
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final FiatConversionStore _fiatConversationStore;
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final Box<TransactionDescription> transactionDescriptionBox;
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@observable
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bool hasMultipleTokens;
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@computed
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List<ContactRecord> get contactsToShow => contactListViewModel.contacts
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.where((element) => element.type == selectedCryptoCurrency)
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.toList();
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@computed
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List<WalletContact> get walletContactsToShow => contactListViewModel.walletContacts
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.where((element) => element.type == selectedCryptoCurrency)
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.toList();
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@action
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bool checkIfAddressIsAContact(String address) {
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final contactList = contactsToShow.where((element) => element.address == address).toList();
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return contactList.isNotEmpty;
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}
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@action
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bool checkIfWalletIsAnInternalWallet(String address) {
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final walletContactList =
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walletContactsToShow.where((element) => element.address == address).toList();
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return walletContactList.isNotEmpty;
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}
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@computed
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bool get shouldDisplayTOTP2FAForContact => _settingsStore.shouldRequireTOTP2FAForSendsToContact;
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@computed
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bool get shouldDisplayTOTP2FAForNonContact =>
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_settingsStore.shouldRequireTOTP2FAForSendsToNonContact;
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@computed
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bool get shouldDisplayTOTP2FAForSendsToInternalWallet =>
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_settingsStore.shouldRequireTOTP2FAForSendsToInternalWallets;
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//* Still open to further optimize these checks
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//* It works but can be made better
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@action
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bool checkThroughChecksToDisplayTOTP(String address) {
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final isContact = checkIfAddressIsAContact(address);
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final isInternalWallet = checkIfWalletIsAnInternalWallet(address);
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if (isContact) {
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return shouldDisplayTOTP2FAForContact;
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} else if (isInternalWallet) {
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return shouldDisplayTOTP2FAForSendsToInternalWallet;
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} else {
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return shouldDisplayTOTP2FAForNonContact;
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}
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}
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bool shouldDisplayTotp() {
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List<bool> conditionsList = [];
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for (var output in outputs) {
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final show = checkThroughChecksToDisplayTOTP(output.extractedAddress);
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conditionsList.add(show);
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}
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return conditionsList.contains(true);
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}
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@action
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Future<PendingTransaction?> createTransaction() async {
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try {
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state = IsExecutingState();
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pendingTransaction = await wallet.createTransaction(_credentials());
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state = ExecutedSuccessfullyState();
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return pendingTransaction;
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} catch (e) {
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state = FailureState(e.toString());
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return null;
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}
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}
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@action
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Future<void> commitTransaction() async {
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if (pendingTransaction == null) {
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throw Exception("Pending transaction doesn't exist. It should not be happened.");
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}
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String address = outputs.fold('', (acc, value) {
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return value.isParsedAddress
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? acc + value.address + '\n' + value.extractedAddress + '\n\n'
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: acc + value.address + '\n\n';
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});
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address = address.trim();
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String note = outputs.fold('', (acc, value) {
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return acc + value.note + '\n';
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});
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note = note.trim();
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try {
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state = TransactionCommitting();
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await pendingTransaction!.commit();
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if (walletType == WalletType.nano) {
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nano!.updateTransactions(wallet);
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}
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if (pendingTransaction!.id.isNotEmpty) {
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_settingsStore.shouldSaveRecipientAddress
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? await transactionDescriptionBox.add(TransactionDescription(
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id: pendingTransaction!.id, recipientAddress: address, transactionNote: note))
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: await transactionDescriptionBox
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.add(TransactionDescription(id: pendingTransaction!.id, transactionNote: note));
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}
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state = TransactionCommitted();
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} catch (e) {
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String translatedError = translateErrorMessage(e.toString(), wallet.type, wallet.currency);
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state = FailureState(translatedError);
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}
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}
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@action
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void setTransactionPriority(TransactionPriority priority) =>
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_settingsStore.priority[wallet.type] = priority;
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Object _credentials() {
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final priority = _settingsStore.priority[wallet.type];
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if (priority == null && wallet.type != WalletType.nano) {
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throw Exception('Priority is null for wallet type: ${wallet.type}');
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}
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switch (wallet.type) {
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case WalletType.bitcoin:
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case WalletType.litecoin:
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case WalletType.bitcoinCash:
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return bitcoin!.createBitcoinTransactionCredentials(outputs, priority: priority!);
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case WalletType.monero:
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return monero!
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.createMoneroTransactionCreationCredentials(outputs: outputs, priority: priority!);
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case WalletType.haven:
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return haven!.createHavenTransactionCreationCredentials(
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outputs: outputs, priority: priority!, assetType: selectedCryptoCurrency.title);
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case WalletType.ethereum:
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return ethereum!.createEthereumTransactionCredentials(outputs,
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priority: priority!, currency: selectedCryptoCurrency);
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case WalletType.nano:
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return nano!.createNanoTransactionCredentials(outputs);
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case WalletType.polygon:
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return polygon!.createPolygonTransactionCredentials(outputs,
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priority: priority!, currency: selectedCryptoCurrency);
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default:
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throw Exception('Unexpected wallet type: ${wallet.type}');
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}
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}
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String displayFeeRate(dynamic priority) {
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final _priority = priority as TransactionPriority;
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if (isElectrumWallet) {
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final rate = bitcoin!.getFeeRate(wallet, _priority);
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return bitcoin!.bitcoinTransactionPriorityWithLabel(_priority, rate);
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}
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return priority.toString();
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}
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bool _isEqualCurrency(String currency) =>
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wallet.balance.keys.any((e) => currency.toLowerCase() == e.title.toLowerCase());
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@action
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void onClose() => _settingsStore.fiatCurrency = fiatFromSettings;
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@action
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void setFiatCurrency(FiatCurrency fiat) => _settingsStore.fiatCurrency = fiat;
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@action
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void setSelectedCryptoCurrency(String cryptoCurrency) {
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try {
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selectedCryptoCurrency = wallet.balance.keys
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.firstWhere((e) => cryptoCurrency.toLowerCase() == e.title.toLowerCase());
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} catch (e) {
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selectedCryptoCurrency = wallet.currency;
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}
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}
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String translateErrorMessage(
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String error,
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WalletType walletType,
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CryptoCurrency currency,
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) {
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if (walletType == WalletType.ethereum ||
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walletType == WalletType.polygon ||
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walletType == WalletType.haven) {
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if (error.contains('gas required exceeds allowance') ||
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error.contains('insufficient funds for')) {
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return S.current.do_not_have_enough_gas_asset(currency.toString());
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}
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return error;
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}
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return error;
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}
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}
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